Adjustable-jaw collimator
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United States of America Patent
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Mar 22, 2016
Grant Date -
Jan 3, 2013
app pub date -
Sep 14, 2012
filing date -
Oct 27, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
An adjustable collimator for shaping a beam of particles, such as for purposes of inspecting contents of a container. The adjustable collimator has an obscuring element substantially opaque to passage of the particles in a propagation direction that is radial with respect to the axis of rotation of a ring of apertures. A gap in the obscuring element may be characterized by a length taken along a long dimension and a jaw spacing taken along narrow dimension, and at least one of the length of the gap and the jaw spacing is subject to adjustment, either manual or automatic. The adjustable collimator may be disposed either inside or outside the ring of apertures, and, in some embodiments, the jaw spacing may be a function of distance along the long dimension relative to an edge of the gap.
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